/// <summary>
/// Determines what direction the hit came from.
/// </summary>
/// <param name="collision">Reference to self for extension.</param>
/// <returns>Direction2D the hit came from.</returns>
public static Direction2D GetDirectionHitCameFrom(this Collision2D collision)
{
// Determine the center point of the hits
Vector2 contactsCenter = collision.GetContactsCenterPoint();
// Get the difference from the contacts center the center of the
// transform of the object that got hit
Transform thisTrans = collision.otherCollider.gameObject.transform;
Vector2 pos2D = new Vector2(thisTrans.position.x, thisTrans.position.y);
Vector2 rawHitDiff = pos2D - contactsCenter;
// Get the direction from the difference
return(rawHitDiff.ToDirection2D());
}
